Sheave for clothes-lines.



No. 775,118. PATENTBD NOV. 15, 1 904. G. S. ROLLSTON. SHEAVE FOR CLOTHESLINES.

APPLICATION FILED KAY 19. 1904.

N1) MODEL.

WITNESSES. INVENTOR C/2J2er S. RaZZoion,

BY W ATTOR/VE UNITED STATES Patented November 15,1904.

CHESTER S. ROLLSTON, OF VANCOUVER, CANADA.

SH EAVE FOR CLOTHES-LINES.

SPECIFICATION forming part of Letters Patent No. 775,118, dated November15, 1904.

Application filed May 19, 1904. Serial No. 208,696. (No model.)

To all whont may concern:

Be it known that I, OHEsTER STEWART RoLLsToN, a citizen of the Dominionof Canada, residing at the city of Vancouver, in the Province of BritishColumbia, Canada, have invented a new and useful Improvement in Sheavesfor Clothes-Lines, of which the following is a specification.

My invention relates to an improved construction of clothes line sheavehaving a means provided to prevent the line from running out of thegroove of the sheave and over its edge, and is particularly designed tobe simple and cheap in construction and will not appreciably add to theweight of the article. In most sheaves of this character where anyattempt is made to guard the rope from getting out of the groove in thesheave the device is in the nature of a continuous guard passing arounda portion of the circumference adjacent to the point of suspension. Thisconstruction, although it may serve the purpose, is heavier than theoccasion requires, and unless made of stout material it is not strongenough laterally to prevent the rope getting out of the groove.

The means by which I propose to effect the purpose in view is to providepivotally-mounted guide-eyes of light design which will swing to thelead of the rope on each side.

The device is fully described in the following specification andillustrated in the drawings which accompany it.

Figure 1 is a side elevation of a sheave, showing the guides in place;and Fig. 2, a perspective view of a detached guide member.

In the drawings the sheave is represented by 2. and the yoke by whichthe axle is connected to the suspending-hook is represented by 3. ThisyokeI prefer to be made of light flat metal, the length of it being justsufficient to allow the rope 4 to pass round the pulley, so that it willitself form a guard between the two guides to prevent the rope gettingout of the groove.

The guide members are constructed of stout wire so bent as to form adouble eye 6, which eye is thereafter bent upward at a suitable angle tothe free ends 7 of the wire. The extreme ends of 7 are outwardly bent atright angles, as at 8, that they may be sprung from the inner side intoapertures 5 in the yoke at a short distance from the axle of the sheaveand may be bent over or riveted slightly to prevent displacement. Therope on each side is thus provided with a pivotally-Inounted arm whichwill swing to the lead of the rope within reasonable limits, and betweenthe two the rope is prevented from getting out of the groove by thesides of the yoke 3, which is close up to the edges of the sheave.

By constructing the guide members of wire the attachment forms alight,cheap, and easilyconnected part of the sheave equipment and can befurnished at a price that will add but little to the cost of the sheave.

I am aware that prior to my invention pivotally-mounted guides have beenused as a means of keeping a chain in the groove of a pulley, but suchhave been of a more substantial construction adapted to the requirementsof a chain-sheave and have been mounted on the axle of the pulley. I amalso aware that guide members have been pivotally mounted toward theupper part of the sheaveframe to prevent the material of awnings, &c.from being drawn into the pulley; but neitherof these inventionsconflict with mine, which is designed to be entirely constructed ofwire, and the members are mounted independently in the yoke orpulley-frame, a construction which is suificient for the requirement andoffers advantages in its ready attachment and removal.

\Vhat I therefore claim as new, and desire to be protected in by LettersPatent, is

1. In a sheave for a clothes-line the combination with the yoke in whichthe pulley is supported, an arm or arms pivotally mounted on the yoke,such arm or arms being made of stout wire formed with an upwardly-turneddouble eye through which the rope is designed to pass. Y

2. In a sheave the combination with the yoke in which the axle of thesheave is designed to run, of rope-guiding members composed of resilientwire bent to form a loop or l In testimony whereofIhave signed my nameeye through which the rope may be passed to this specification in thepresence of two sub- Whioh eyes are upwardly turned from the freescribing witnesses.

ends of the wire, the extreme ends of which CHESTER S. ROLLSTON. areoutwardly turned so as to spring into Witnesses: apertures in the yokebetween the axle and ROWLAND BRITTAIN,

the suspending-hook. ELLIOE WEBBER.

